five char device address
Hi to all, is it possible to define device addresses over the 4 dev address? I mean, the limit address of a device is , so what happens when need to define more devices?, can be defined 5 chars address devices (F) ? Best regards, Enrique Montero. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
-- Yes, interesting applications. Although they cannot be that 'old', 3390-s are around for 2 decades or so. Your example of the 65k PS limit is still not limiting a dataset to a 3390-3, it will fit perfectly on a 3390-54. How can an application demand a 3390-3? I know an application that demands its dataset to be within the first 256 cylinders of the volume, this is ancient private excp processing from the 70's, this is 'old'. So, where is the 3390-3 limit? - Any program using BDAM with calculated relative or absolute disk addresses can run afoul of device limitations; that's mainly why these types of things are discouraged. If you really think you need BDAM with calculated addresses, consider the use of VSAM RRDS instead. Fewer device dependancies and a far brighter future. :-) Rick -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
On 10/6/2011 1:04 PM, Rick Fochtman wrote: Any program using BDAM with calculated relative or absolute disk addresses can run afoul of device limitations; that's mainly why these types of things are discouraged. If you really think you need BDAM with calculated addresses, consider the use of VSAM RRDS instead. Fewer device dependancies and a far brighter future. :-) Brighter future?! BDAM is supported for 1TB EAV and getting a 'facelift' with zHPF channel programs. Where's the 'darkness' in that? As long as your addresses are relative and not absolute, you are AOK! -- Edward E Jaffe Phoenix Software International, Inc 831 Parkview Drive North El Segundo, CA 90245 310-338-0400 x318 edja...@phoenixsoftware.com http://www.phoenixsoftware.com/ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
-- Any program using BDAM with calculated relative or absolute disk addresses can run afoul of device limitations; that's mainly why these types of things are discouraged. If you really think you need BDAM with calculated addresses, consider the use of VSAM RRDS instead. Fewer device dependancies and a far brighter future. :-) Brighter future?! BDAM is supported for 1TB EAV and getting a 'facelift' with zHPF channel programs. Where's the 'darkness' in that? As long as your addresses are relative and not absolute, you are AOK! --- ISTR reading somewhere that DBAM was now Class-C. Perhaps the old memory banks got scrambled somewhere. :-( Rick -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
Rick, Hehe we had an oem product that modified BDAM to search key (equal and low) I could be wrong it's been 40 years. It was a one or two byte zap. It's all hazy but I do remember them looking through microfiche and having to maintain the zap as we got stuck with ownership. I sure was glad I wasn't in that meeting. Ed -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
W dniu 2011-10-05 16:15, MONTERO ROMERO, ENRIQUE ELOI pisze: Hi to all, is it possible to define device addresses over the 4 dev address? I mean, the limit address of a device is , so what happens when need to define more devices?, can be defined 5 chars address devices (F) ? There is no simple YES/NO answer. Generally speaking, NO device adresses are 4-digits. However since times of z9 machine and (AFAIK) zOS 1.7 t's possible to move 3390A aliases to "another cosmos" leaving more addresses for regular devices. It's called MSS - multiple subchannel set. Nowadays it's also possible to use MSS1 for PPRC secondary devices (AFAIK new device types in HCD dialogs). What happens when you reach the limit? You HAVE A PROBLEM! Possible solutions: 1. Move aliases to MSS1. That should relieve the constraint. 2. Use less aliases. Not so stupid, when you also start using HyperPAV. 3. Use bigger device types. Vast majority of devices are disks. You can have plenty of 3390-3, or plenty/3 of 3390-9 or less "3390-54", or quite few EAV devices. 4. Use duplicate device addresses. This is solution for multiple CPCs NOT SHARING all the disks. Example: CPC A is connected to DASD1 and DASD2. CPC B is connected to DASD1 and DASD3. So, DASD2 and 3 can be addressed using the same device numbers. BTW: Do you really have such problem? -- Radoslaw Skorupka Lodz, Poland -- Tre tej wiadomoci moe zawiera informacje prawnie chronione Banku przeznaczone wycznie do uytku subowego adresata. Odbiorc moe by jedynie jej adresat z wyczeniem dostpu osób trzecich. Jeeli nie jeste adresatem niniejszej wiadomoci lub pracownikiem upowanionym do jej przekazania adresatowi, informujemy, e jej rozpowszechnianie, kopiowanie, rozprowadzanie lub inne dziaanie o podobnym charakterze jest prawnie zabronione i moe by karalne. Jeeli otrzymae t wiadomo omykowo, prosimy niezwocznie zawiadomi nadawc wysyajc odpowied oraz trwale usun t wiadomo wczajc w to wszelkie jej kopie wydrukowane lub zapisane na dysku. This e-mail may contain legally privileged information of the Bank and is intended solely for business use of the addressee. This e-mail may only be received by the addressee and may not be disclosed to any third parties. If you are not the intended addressee of this e-mail or the employee authorised to forward it to the addressee, be advised that any dissemination, copying, distribution or any other similar activity is legally prohibited and may be punishable. If you received this e-mail by mistake please advise the sender immediately by using the reply facility in your e-mail software and delete permanently this e-mail including any copies of it either printed or saved to hard drive. BRE Bank SA, 00-950 Warszawa, ul. Senatorska 18, tel. +48 (22) 829 00 00, fax +48 (22) 829 00 33, e-mail: i...@brebank.pl Sd Rejonowy dla m. st. Warszawy XII Wydzia Gospodarczy Krajowego Rejestru Sdowego, nr rejestru przedsibiorców KRS 025237, NIP: 526-021-50-88. Wedug stanu na dzie 01.01.2011 r. kapita zakadowy BRE Banku SA (w caoci wpacony) wynosi 168.346.696 zotych. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
On 10/5/2011 7:15 AM, MONTERO ROMERO, ENRIQUE ELOI wrote: is it possible to define device addresses over the 4 dev address? I mean, the limit address of a device is , so what happens when need to define more devices?, can be defined 5 chars address devices (F) ? Device numbers are already five digits long if you include the subchannel set ID. Many IOS messages format a five digit device number. For example: IOS126I DEVICE s IS KEPT OFFLINE. text Explanation: During IPL, it was determined that a device was kept offline for a specific reason. The reason is described by the message text. In the message text: s The subchannel set ID and device number of the device kept offline. text Describes the reason the device is kept offline and is as follows: A PRIMARY OF A SPECIAL PAIR IS ONLY EXPECTED IN SUBCHANNEL SET y Where 'y' is the subchannel set selected for IPL. During device initialization, this device was found to be operating in Primary mode as part of a Special pair and was found in a subchannel set that was not selected for IPL. Devices operating in Primary mode are only expected in the subchannel set that was selected for IPL. See z/OS HCD Planning for information on Special pairs. During IPL, the system determines which subchannel set to use for devices that are accessible from multiple subchannel sets based on: o The SCHSET parameter specified in the LOADxx parmlib member. See z/OS MVS Initialization and Tuning Reference. o The operator's response to IEA111D if it was issued. See z/OS MVS System Messages, Vol 6 (GOS-IEA). -- Edward E Jaffe Phoenix Software International, Inc 831 Parkview Drive North El Segundo, CA 90245 310-338-0400 x318 edja...@phoenixsoftware.com http://www.phoenixsoftware.com/ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
"Edward Jaffe" wrote in message news:<4e8c7d99.8020...@phoenixsoftware.com>... > On 10/5/2011 7:15 AM, MONTERO ROMERO, ENRIQUE ELOI wrote: > > is it possible to define device addresses over the 4 dev address? > > > > I mean, the limit address of a device is , so what happens when need to define more devices?, can be defined 5 chars address devices (F) ? > > > > Device numbers are already five digits long if you include the subchannel set > ID. Many IOS messages format a five digit device number. For example: > > > IOS126I DEVICE s IS KEPT OFFLINE. text > We discovered IEE174I, which changed when we moved from z9 to z196. The actual change was since the z10, which is why we did not notice this as a 'z196 change'. Kees. D M=chp(d4) IEE174I 22.49.08 DISPLAY M 524 CHPID D4: TYPE=1B, DESC=FICON SWITCHED, ONLINE DEVICE STATUS FOR CHANNEL PATH D4 0 1 2 3 4 5 6 7 8 9 A B C D E F 0063 + + + + + + + + + + + + + + + + 0064 + + + + + + + + + + + + + + + + Kees. For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
Hi, Really we are near to reach the last available address, hopefully, i am not the one who has to deal with the problem ;-). To move from 3390-3 to -54, several old applicactions only accept -3 model, in my concern, a bad programming. I will tell to our (iocds) guy about the 5 digit device address, maybe he will get some idea... Thanks a lot once again, Enrique Montero -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
W dniu 2011-10-05 22:52, Vernooij, CP - SPLXM pisze: "Edward Jaffe" wrote in message news:<4e8c7d99.8020...@phoenixsoftware.com>... On 10/5/2011 7:15 AM, MONTERO ROMERO, ENRIQUE ELOI wrote: is it possible to define device addresses over the 4 dev address? I mean, the limit address of a device is , so what happens when need to define more devices?, can be defined 5 chars address devices (F) ? Device numbers are already five digits long if you include the subchannel set ID. Many IOS messages format a five digit device number. For example: IOS126I DEVICE s IS KEPT OFFLINE. text We discovered IEE174I, which changed when we moved from z9 to z196. The actual change was since the z10, which is why we did not notice this as a 'z196 change'. Kees. D M=chp(d4) IEE174I 22.49.08 DISPLAY M 524 CHPID D4: TYPE=1B, DESC=FICON SWITCHED, ONLINE DEVICE STATUS FOR CHANNEL PATH D4 0 1 2 3 4 5 6 7 8 9 A B C D E F 0063 + + + + + + + + + + + + + + + + 0064 + + + + + + + + + + + + + + + + What misleading is first digit. One coul thing it can be any number, but it cannot actually. One can think it; any device, but (for 1st ditig>=0) it cannot. Indeed, the output on z10 look the same. but I think, the change depends on OS version, not the machine type. Regards -- Radoslaw Skorupka Lodz, Poland -- Tre tej wiadomoci moe zawiera informacje prawnie chronione Banku przeznaczone wycznie do uytku subowego adresata. Odbiorc moe by jedynie jej adresat z wyczeniem dostpu osób trzecich. Jeeli nie jeste adresatem niniejszej wiadomoci lub pracownikiem upowanionym do jej przekazania adresatowi, informujemy, e jej rozpowszechnianie, kopiowanie, rozprowadzanie lub inne dziaanie o podobnym charakterze jest prawnie zabronione i moe by karalne. Jeeli otrzymae t wiadomo omykowo, prosimy niezwocznie zawiadomi nadawc wysyajc odpowied oraz trwale usun t wiadomo wczajc w to wszelkie jej kopie wydrukowane lub zapisane na dysku. This e-mail may contain legally privileged information of the Bank and is intended solely for business use of the addressee. This e-mail may only be received by the addressee and may not be disclosed to any third parties. If you are not the intended addressee of this e-mail or the employee authorised to forward it to the addressee, be advised that any dissemination, copying, distribution or any other similar activity is legally prohibited and may be punishable. If you received this e-mail by mistake please advise the sender immediately by using the reply facility in your e-mail software and delete permanently this e-mail including any copies of it either printed or saved to hard drive. BRE Bank SA, 00-950 Warszawa, ul. Senatorska 18, tel. +48 (22) 829 00 00, fax +48 (22) 829 00 33, e-mail: i...@brebank.pl Sd Rejonowy dla m. st. Warszawy XII Wydzia Gospodarczy Krajowego Rejestru Sdowego, nr rejestru przedsibiorców KRS 025237, NIP: 526-021-50-88. Wedug stanu na dzie 01.01.2011 r. kapita zakadowy BRE Banku SA (w caoci wpacony) wynosi 168.346.696 zotych. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
"R.S." wrote in message news:<4e8ccbd2.4000...@bremultibank.com.pl>... > W dniu 2011-10-05 22:52, Vernooij, CP - SPLXM pisze: > > "Edward Jaffe" wrote in message > > news:<4e8c7d99.8020...@phoenixsoftware.com>... > >> On 10/5/2011 7:15 AM, MONTERO ROMERO, ENRIQUE ELOI wrote: > >>> is it possible to define device addresses over the 4 dev address? > >>> > >>> I mean, the limit address of a device is , so what happens when > > need to define more devices?, can be defined 5 chars address devices > > (F) ? > >>> > >> > >> Device numbers are already five digits long if you include the > > subchannel set > >> ID. Many IOS messages format a five digit device number. For example: > >> > >> > >> IOS126I DEVICE s IS KEPT OFFLINE. text > >> > > > > We discovered IEE174I, which changed when we moved from z9 to z196. The > > actual change was since the z10, which is why we did not notice this as > > a 'z196 change'. > > Kees. > > > > D M=chp(d4) > > IEE174I 22.49.08 DISPLAY M 524 > > CHPID D4: TYPE=1B, DESC=FICON SWITCHED, ONLINE > > DEVICE STATUS FOR CHANNEL PATH D4 > > 0 1 2 3 4 5 6 7 8 9 A B C D E F > > 0063 + + + + + + + + + + + + + + + + > > 0064 + + + + + + + + + + + + + + + + > > > > What misleading is first digit. One coul thing it can be any number, but > it cannot actually. One can think it; any device, but (for 1st ditig>=0) > it cannot. > Indeed, the output on z10 look the same. but I think, the change depends > on OS version, not the machine type. > > Regards > -- > Radoslaw Skorupka > Lodz, Poland The first digit is also the CSS id here. It pops up when moving to z10, see OA16525. Kees. For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
MONTERO ROMERO, ENRIQUE ELOI wrote: Hi, Really we are near to reach the last available address, hopefully, i am not the one who has to deal with the problem ;-). To move from 3390-3 to -54, several old applicactions only accept -3 model, in my concern, a bad programming. I will tell to our (iocds) guy about the 5 digit device address, maybe he will get some idea... Thanks a lot once again, Enrique Montero -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html People often get confused about this, so just to make sure it's clear: No matter what you do, you cannot have more than 65,280 devices defined to z/OS (that is not coincidentally the number of subchannels in subchannel set zero). What you can do is move PPRC secondary and PAV alias definitions from subchannel set 0 to subchannel sets 1 and 2, if they are available on your processor. This will free subchannels in subchannel set zero that you could use to define additional devices. -- John Eells z/OS Technical Marketing IBM Poughkeepsie ee...@us.ibm.com -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
W dniu 2011-10-06 08:04, MONTERO ROMERO, ENRIQUE ELOI pisze: Hi, Really we are near to reach the last available address, hopefully, i am not the one who has to deal with the problem ;-). To move from 3390-3 to -54, several old applicactions only accept -3 model, in my concern, a bad programming. I will tell to our (iocds) guy about the 5 digit device address, maybe he will get some idea... Tell us about the application. There are some limitations for some dataset types, but some of the limitations are relieved, or can be bypassed. Example: PS dataset is limited to 64k TRK which means a little more than 3390-3. However you can use DSNTYPE=LARGE or extended format dataset instead of "regular" PS. -- Radoslaw Skorupka Lodz, Poland -- Tre tej wiadomoci moe zawiera informacje prawnie chronione Banku przeznaczone wycznie do uytku subowego adresata. Odbiorc moe by jedynie jej adresat z wyczeniem dostpu osób trzecich. Jeeli nie jeste adresatem niniejszej wiadomoci lub pracownikiem upowanionym do jej przekazania adresatowi, informujemy, e jej rozpowszechnianie, kopiowanie, rozprowadzanie lub inne dziaanie o podobnym charakterze jest prawnie zabronione i moe by karalne. Jeeli otrzymae t wiadomo omykowo, prosimy niezwocznie zawiadomi nadawc wysyajc odpowied oraz trwale usun t wiadomo wczajc w to wszelkie jej kopie wydrukowane lub zapisane na dysku. This e-mail may contain legally privileged information of the Bank and is intended solely for business use of the addressee. This e-mail may only be received by the addressee and may not be disclosed to any third parties. If you are not the intended addressee of this e-mail or the employee authorised to forward it to the addressee, be advised that any dissemination, copying, distribution or any other similar activity is legally prohibited and may be punishable. If you received this e-mail by mistake please advise the sender immediately by using the reply facility in your e-mail software and delete permanently this e-mail including any copies of it either printed or saved to hard drive. BRE Bank SA, 00-950 Warszawa, ul. Senatorska 18, tel. +48 (22) 829 00 00, fax +48 (22) 829 00 33, e-mail: i...@brebank.pl Sd Rejonowy dla m. st. Warszawy XII Wydzia Gospodarczy Krajowego Rejestru Sdowego, nr rejestru przedsibiorców KRS 025237, NIP: 526-021-50-88. Wedug stanu na dzie 01.01.2011 r. kapita zakadowy BRE Banku SA (w caoci wpacony) wynosi 168.346.696 zotych. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
"R.S." wrote in message news:<4e8db89c.7010...@bremultibank.com.pl>... > W dniu 2011-10-06 08:04, MONTERO ROMERO, ENRIQUE ELOI pisze: > > Hi, > > > > Really we are near to reach the last available address, hopefully, i am not the one who has to deal with the problem ;-). > > > > To move from 3390-3 to -54, several old applicactions only accept -3 model, in my concern, a bad programming. > > I will tell to our (iocds) guy about the 5 digit device address, maybe he will get some idea... > > Tell us about the application. There are some limitations for some > dataset types, but some of the limitations are relieved, or can be > bypassed. > Example: PS dataset is limited to 64k TRK which means a little more than > 3390-3. However you can use DSNTYPE=LARGE or extended format dataset > instead of "regular" PS. > > -- > Radoslaw Skorupka Yes, interesting applications. Although they cannot be that 'old', 3390-s are around for 2 decades or so. Your example of the 65k PS limit is still not limiting a dataset to a 3390-3, it will fit perfectly on a 3390-54. How can an application demand a 3390-3? I know an application that demands its dataset to be within the first 256 cylinders of the volume, this is ancient private excp processing from the 70's, this is 'old'. So, where is the 3390-3 limit? Kees. For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
On 10/6/2011 7:18 AM, R.S. wrote: Tell us about the application. There are some limitations for some dataset types, but some of the limitations are relieved, or can be bypassed. Example: PS dataset is limited to 64k TRK which means a little more than 3390-3. However you can use DSNTYPE=LARGE or extended format dataset instead of "regular" PS. This seems confused. The 64K track limitation is on the size of the data set itself, not the size of the volume on which it resides. Our systems have many ordinary DSORG=PS data sets resident in the cylinder-managed portion of an EAV that has a total size of 262,668 cylinders. We don't need DSNTYPE=LARGE data sets to have a 'large' 3390 volume. -- Edward E Jaffe Phoenix Software International, Inc 831 Parkview Drive North El Segundo, CA 90245 310-338-0400 x318 edja...@phoenixsoftware.com http://www.phoenixsoftware.com/ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: five char device address
W dniu 2011-10-06 16:31, Vernooij, CP - SPLXM pisze: "R.S." wrote in message news:<4e8db89c.7010...@bremultibank.com.pl>... W dniu 2011-10-06 08:04, MONTERO ROMERO, ENRIQUE ELOI pisze: Hi, Really we are near to reach the last available address, hopefully, i am not the one who has to deal with the problem ;-). To move from 3390-3 to -54, several old applicactions only accept -3 model, in my concern, a bad programming. I will tell to our (iocds) guy about the 5 digit device address, maybe he will get some idea... Tell us about the application. There are some limitations for some dataset types, but some of the limitations are relieved, or can be bypassed. Example: PS dataset is limited to 64k TRK which means a little more than 3390-3. However you can use DSNTYPE=LARGE or extended format dataset instead of "regular" PS. -- Radoslaw Skorupka Yes, interesting applications. Although they cannot be that 'old', 3390-s are around for 2 decades or so. Your example of the 65k PS limit is still not limiting a dataset to a 3390-3, it will fit perfectly on a 3390-54. How can an application demand a 3390-3? I know an application that demands its dataset to be within the first 256 cylinders of the volume, this is ancient private excp processing from the 70's, this is 'old'. So, where is the 3390-3 limit? Kees, AFAIK there is (were?) a problem with PS files used by ADABAS. ADABAS use its onw access method called ADAM, and the limitation was related to cylinder number or something else. The problem was even with 3390-9 disks. BTW: I agree disks larger than 3390-3 are available for really long time. Regards -- Radoslaw Skorupka Lodz, Poland -- Tre tej wiadomoci moe zawiera informacje prawnie chronione Banku przeznaczone wycznie do uytku subowego adresata. Odbiorc moe by jedynie jej adresat z wyczeniem dostpu osób trzecich. Jeeli nie jeste adresatem niniejszej wiadomoci lub pracownikiem upowanionym do jej przekazania adresatowi, informujemy, e jej rozpowszechnianie, kopiowanie, rozprowadzanie lub inne dziaanie o podobnym charakterze jest prawnie zabronione i moe by karalne. Jeeli otrzymae t wiadomo omykowo, prosimy niezwocznie zawiadomi nadawc wysyajc odpowied oraz trwale usun t wiadomo wczajc w to wszelkie jej kopie wydrukowane lub zapisane na dysku. This e-mail may contain legally privileged information of the Bank and is intended solely for business use of the addressee. This e-mail may only be received by the addressee and may not be disclosed to any third parties. If you are not the intended addressee of this e-mail or the employee authorised to forward it to the addressee, be advised that any dissemination, copying, distribution or any other similar activity is legally prohibited and may be punishable. If you received this e-mail by mistake please advise the sender immediately by using the reply facility in your e-mail software and delete permanently this e-mail including any copies of it either printed or saved to hard drive. BRE Bank SA, 00-950 Warszawa, ul. Senatorska 18, tel. +48 (22) 829 00 00, fax +48 (22) 829 00 33, e-mail: i...@brebank.pl Sd Rejonowy dla m. st. Warszawy XII Wydzia Gospodarczy Krajowego Rejestru Sdowego, nr rejestru przedsibiorców KRS 025237, NIP: 526-021-50-88. Wedug stanu na dzie 01.01.2011 r. kapita zakadowy BRE Banku SA (w caoci wpacony) wynosi 168.346.696 zotych. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
BDAM (was: five char device address)
Edward Jaffe wrote: | Brighter future?! BDAM is supported for 1TB EAV and getting a 'facelift' with zHPF | channel programs. Where's the 'darkness' in that? As long as your addresses are | relative and not absolute, you are AOK! and I very largely agree. In the right hands even old-style BDAM can provide much better performance than VSAM. (The tradeoff is that one must usually write more code than would be required if VSAM were used.) New users of BDAM do, however, need to be aware of its problematic characteristics in some situations. Because of its record-preallocation scheme it should, for example, be avoided if its key space would always be very sparsely populated. There are other design alternatives to be canvassed too. In some but certainly not all cases, BSAM with NOTE and POINT can serve as well as BDAM, again at the price of more code to write or cannibalize. John Gilmore - Ashland, MA 01721, USA -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html